[17a-WL2_201-1~11] 3.11 Nanoscale optical science and near-field optics

10:00 AM - 10:15 AM JST(1:00 AM - 1:15 AM UTC)

[17a-WL2_201-5] Investigation of the Relationship between Structure Periodicity and Electric Field Strength using DNA-functionalized nanoparticle superlattices

〇(M1)Nonoko Nagasaka¹, Taito Ikeuchi¹, Saki Kozawa¹, Lidong Zhang¹, Satoshi Ogawa², Makoto Kuwahara², Xu Li², Miho Tagawa² (1.Graduate School of Eng., Nagoya Univ., 2.IMaSS, Nagoya Univ.)

Keywords:

plasmonics

Using the enhanced electric field generated by plasmons inside periodic nanoparticle superlattices, it is expected to develop applications such as trace molecule detection. Elucidating the relationship between nanoparticle periodic structures and enhanced electric field strength is becoming increasingly important. In this study, we used DNA-modified nanoparticle superlattices with different nanostructure periodicity to evaluate the electric field strength. By the results of the intensity of surface-enhanced Raman scattering signals and theoretical calculations, we can say that superlattices that maintain their structural periodicity tend to have a larger enhanced electric field.